fix(local-unit): udpate file name in import modal

Author: shreeyash07

app/src/views/CountryNsOverviewContextAndStructure/NationalSocietyLocalUnits/LocalUnitImportModal/i18n.json

@@ -2,16 +2,16 @@
     "namespace": "localUnitImportModal",
     "strings": {
         "modalHeading": "Import Local Units for {countryName}",
-        "modalDescription": "Please select a local unit type and upload the CSV file",
+        "modalDescription": "Please select a local unit type and upload the xlsx file",
         "modalImportPendingDescription": "Your file is currently being processed. You can close this modal and check the result from the upload history",
         "closeButtonLabel": "Close",
         "localUnitTypeInputLabel": "Local unit type",
-        "uploadFileSectionTitle": "Upload CSV file",
-        "uploadFileSectionDescription": "Please make sure to select a supported file format (csv) with size less than 10MB",
+        "uploadFileSectionTitle": "Upload xlsx file",
+        "uploadFileSectionDescription": "Please make sure to select a supported file format (xlsx) with size less than 10MB",
         "selectFileButtonLabel": "Select a file",
         "cancelUploadButtonLabel": "Cancel",
         "startUploadButtonLabel": "Upload",
-        "contentStructureDescription": "The contents in the CSV should follow the structure provided in {templateLink}.",
+        "contentStructureDescription": "The contents in the xlsx should follow the structure provided in {templateLink}.",
         "templateLinkLabel": "this template",
         "noPermissionBothDescription": "You don't have permission and this unit is not externally managed.",
         "noPermissionErrorDescription": "You do not have the permission to upload local unit data",

app/src/views/CountryNsOverviewContextAndStructure/NationalSocietyLocalUnits/LocalUnitImportModal/index.tsx

@@ -258,7 +258,7 @@ function LocalUnitBulkUploadModal(props: Props) {
                     {isNotDefined(bulkUploadFile) && (
                         <RawFileInput
                             name="file"
-                            accept=".csv"
+                            accept=".xlsx"
                             onChange={setBulkUploadFile}
                             variant="secondary"
                             disabled={